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Zoisite and Covellite Physical Properties


Covellite and Zoisite Physical Properties


Physical Properties

Tenacity
Not Available   
Flexible   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.20-3.50   
4.6-4.76   

Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even   
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   

Cleavage
Perfect {010} imperfect {100}   
Perfect on {0001}   

Mohs Hardness
6-7   
Not Available   

Chemical Composition
Ca2Al3(SiO4)3(OH)   
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references   

Optical Properties >>
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Zoisite and Covellite Chemical Formula

While comparing Zoisite and Covellite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Zoisite and Covellite chemical formula.

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Zoisite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.

Brown Gemstones

Brown Gemstones


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